I am very happy with my 15" Powerbook made by Apple. We purchased it over 3 years ago and mostly it hasn't missed a beat.

Recently though it stopped accepting any CD's or DVD's so we will have to get that replaced shortly - about $600 to get it working again - AAHH!

The only other thing that is a bit negative is that the battery now only lasts up-to 15 minutes. We might buy a new one at some stage too.